nvidia-smi Failed to initialize NVML: GPU access blocked by the operating system

cuda gpu nvidia
Majid Azimi picture Majid Azimi · Nov 20, 2015 · Viewed 27.3k times · Source

when asking for 

nvidia-smi

it gives this error:

Failed to initialize NVML: GPU access blocked by the operating system

other information:

$ nvcc --verion

nvcc: NVIDIA (R) Cuda compiler driver
Copyright (c) 2005-2015 NVIDIA Corporation
Built on Mon_Feb_16_22:59:02_CST_2015
Cuda compilation tools, release 7.0, V7.0.27

and also:

 $ lspci | grep -i nvidia

 01:00.0 VGA compatible controller: NVIDIA Corporation GF108M [GeForce GT 425M] (rev a1)
 01:00.1 Audio device: NVIDIA Corporation GF108 High Definition Audio Controller (rev a1)

Having searched a lot in the internet I couldn't find a way to solve this problem. when I use ipython notebook and want to run Caffe framework it gives this error:

Check failed: error == cudaSuccess (38 vs. 0)  no CUDA-capable device is detected

Answer

Majid Azimi picture Majid Azimi · Nov 21, 2015

I noticed that after CUDA installation restarting Ubuntu works, and now I see the GPU details output by nvidia-smi

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